/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.dubbo.rpc.protocol.tri.support;

import org.apache.dubbo.common.stream.StreamObserver;

import java.util.concurrent.CompletableFuture;

public interface IGreeter {

    String SERVER_MSG = "HELLO WORLD";

    /**
     * Use request to respond
     */
    String echo(String request);

    default CompletableFuture<String> echoAsync(String request) {
        return CompletableFuture.supplyAsync(() -> echo(request));
    }

    void serverStream(String str, StreamObserver<String> observer);

    StreamObserver<String> bidirectionalStream(StreamObserver<String> observer);

}
